ii V I is something you have heard a million times but didn't know what it was called. It is a cadence just like V I is . The "A - men" cadence at the end of every hymn is harmonised with a V I progression and most symphonies end with some seesawing back and forth between the V and I and finish on the I.leighbeynon wrote:arrhhh ok i see what your saying,
so the roman numerals are just for the different chords,ok think ive got this,
and the pattern your telling me about is a common progression that works well ?
The point of using the roman numerals is that it gives the general case which can be applied to all 12 keys. The numerals are just labels for the degrees of the scale. In C major the Ist to 7th degrees of the scale are the 7 white notes on the piano keyboard from C up to B.
It can be worth sitting down with a particular scale and working out all the chords you can build exclusively out of scale tones. Do this for each degree of the scale and you have a table with all the available chords you can use in a progression without leaving the key.
Circle of 5ths takes you around all 12 tones so obviously it modulates out of the starting key. In bebop or jazz showtunes which are often quite chromatic, lots of keys is no problem. In pop music there is more often a tendency to stay close to the key centre so finding chords within the scale tones of the main key is useful.im just going to concentrate on learning maj scales as i can build chords from this and understand how they are contructed, doesnt the circle of 5ths give you a good guide as to what chords work best with one another ?
If your tune is in A minor you have all the chords that use the white notes to play around with without leaving the key:
These are the 7th chords:
Cma7, Dmi7, Emi7, Fma7, G7, Ami7, Bmi7b5
There are plenty of extensions and variations on those too.